快点火靶的新型概念和结构分析

New concept and structure of fast ignition target

提出了一个快点火靶新型概念和结构分析,在锥的尖端制作一个热斑大小的平台,以避免燃料从锥方向逃逸;在平台中间制作一个微纳米点,以约束热电子发射。或者在平台上制作微纳米点阵列,以抬高阿尔文效应限制的条件。考虑超热电子发射的静电势、材料的逸出功,给出了热电子发射能量公式,根据公式提出了关于快点火靶在材料和结构方面的优化条件和研究内容。比如,提高超热电子发射的静电势,和发射材料的选择等,以优化超热电子的出射能量和方向。

A new structure for the fast ignition target was presented,setting a flat tip in the front cone to avoid plasma escaping,and a micro-nanometer dot on centre of flat tip to emit thermal electron.The limited condition of Alfvén principle might arise when the array of micro-nano-meter-dot was fabricated on the tip-flap.An energy formula of thermal electron was presented,following multi-project to research to improve the structure and the performance.